Adobe-Consulting-Services/acs-aem-commons

/*
 * ACS AEM Commons
 *
 * Copyright (C) 2013 - 2023 Adobe
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.adobe.acs.commons.cloudconfig.impl;

import java.io.IOException;
import java.util.Collections;

import javax.servlet.Servlet;

import org.apache.commons.lang3.StringUtils;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceUtil;
import org.apache.sling.api.servlets.HttpConstants;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.jcr.resource.api.JcrResourceConstants;
import org.apache.sling.servlets.post.HtmlResponse;
import org.jetbrains.annotations.NotNull;
import org.osgi.service.component.annotations.Component;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.day.cq.commons.jcr.JcrConstants;
import com.day.cq.wcm.api.Page;
import com.day.cq.wcm.api.PageManager;
import com.day.cq.wcm.api.WCMException;

@Component(service = Servlet.class, property = { "sling.servlet.methods=" + HttpConstants.METHOD_POST,
    "sling.servlet.resourceTypes=acs-commons/components/utilities/cloudconfig/cloudconfiglist" })
public class CreateCloudConfigServlet extends SlingAllMethodsServlet {

  private static final long serialVersionUID = -397622433323474345L;
  private static final Logger log = LoggerFactory.getLogger(CreateCloudConfigServlet.class);

  @Override
  protected void doPost(@NotNull SlingHttpServletRequest request, @NotNull SlingHttpServletResponse response)
      throws IOException {
    ResourceResolver resolver = request.getResourceResolver();
    PageManager pageManager = resolver.adaptTo(PageManager.class);

    HtmlResponse resp = new HtmlResponse();

    if (pageManager == null) {
      resp.setError(new IOException("Unable to get page manager"));
    } else {

      String configPath = getParam(request, "configPath");
      Resource cloudConfigFolder = ResourceUtil.getOrCreateResource(resolver, configPath + "/settings/cloudconfigs",
          Collections.singletonMap(JcrConstants.JCR_PRIMARYTYPE, JcrResourceConstants.NT_SLING_FOLDER),
          JcrResourceConstants.NT_SLING_FOLDER, false);
      log.debug("Creating Cloud Config in: {}", cloudConfigFolder);
      
      resp.setParentLocation(cloudConfigFolder.getPath());
      
      // create a new page
      Page page;
      try {
        page = pageManager.create(cloudConfigFolder.getPath(), getParam(request, "name"), getParam(request, "template"),
            getParam(request, "title"));
        resp.setPath(page.getPath());
        resp.setLocation(page.getPath());
        resp.setStatus(200, "Created Cloud Configuration");
        log.debug("Created configuration: {}", page.getPath());
        resolver.commit();
      } catch (WCMException e) {
        resp.setError(e);
      }

    }
    response.setContentType("text/plain");
    resp.send(response, true);

  }

  private String getParam(SlingHttpServletRequest request, String param) throws IOException {
    String value = request.getParameter(param);
    if (StringUtils.isBlank(value)) {
      throw new IOException("Parameter " + param + " must not be blank");
    } else {
      log.debug("Loaded {} for parameter {}", value, param);
    }
    return value;
  }

}